Dell sort of spoiled the surprise by dishing out some of the details about its updated Studio 15 laptop on is support site a full two months ago (not to mention that little business in Signapore), but the company has now finally gotten fully official with the laptop, and made it available in the U.S., Canada, and Latin America. The big news with this update is a new and improved 15.6-inch LED-backlit display, which packs a native 1366 x 7